Range



J. A. LANSING.

RANGE.

APPLICATION FILED DEC. I6, 15H6.

Patented Oct. 28, i919.

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l. A. LANSING.

RANGE.

APPLICATION min Dsc. fs, 191s.

Patented Oct. 28, 1919.

UDDI] I.A. LANSING.

RANGE.

APPLICATION FILED, Dsc. I6. I9Ie.

Patented Oct. 28, 1919.

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JAMES A. LANSING, 0F 'SCRANTO-N, PENNSYLVANIA.

RANGE.

Specification of Letters Patent.

`Patented oct. 2s, 1919.

Application led December 16, 1916. Serial No. 137,340.

To all whom 1f/may concern.'

Be it known that I, JAMES A. LANSING, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Ranges; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the ac- Provision is made in the construction dis-y closed in both of said patents for the heating of water either by the consumption of solid fuel in the rebox, or gaseous fuel in the gaseous fuel combustion chamber, or both. The earlier Patent No. 1,021,640 attains this end by means of a water front or chamber forthe circulation of water, which is inter- -posed between the ireboX and the gaseous fuel combustion chamber so that heat .generated in either chamber will impinge on the side of the water front and heatv the water circulating therein. In the later Pat- Y ent No. 1,153,322, the same result is attained by a different means; that is, instead of the water front, water-circulating coils are employed which extend into both the gaseous fuel combustion chamber and the fireboX.

The object of the present invention is to provide a construction wherein all the advantages of both types of water heating media, set forth in the patents above enumerated, are retained and, as a consequence, a construction of maximum heating eiiiciency is produced. Briefly stated, the present construction contemplates the use of a water frontA interposed between the solid fuel lrebox and the Vgaseous fuel combustion chamber, and the use of coils located over the burners in the gaseous fuel combustion chamber, with provision for maintaining circulation of water in the coils independent of the circulation in the water front. In this manner, all the advantages of causing heated products of combustion, either in the ireboX or the gaseous fuel combustion chamber, to impinge against the side of ay water front are retained, coupled with the distinct advan-y tage derived from lthe use of coils located directly above the burners in thegaseous fuel combustion chamber. A much greater heating eiiiciency is the result, when gaseous fuel is employed, without in anyway detracting. from the heating eficiency, when burning solid fuel.V y

With the above end in view, the invention consists in the improved construction, arrangement and combinations of parts, pointed out in the claims at the end of the speciication., A full understanding of the vention will be attained from the ensuingy detailed description, when taken in connection with the accompanylng drawings,

which illustrate a structural embodiment ofthe invention in a preferred form.

In the drawings v Figure 1 is a longitudinal vertical sectional elevatioa of a range provided with the present improvements.

Fig. 2 is a fragmentary horizontal section looking downwardly on the combustion chamber and the reboX.

Fig. 3 isa fragmentary horizontal section on the line 8-3 of Fig. 1.

Fig. 4 is a perspective view with portions of the stove broken away showing one arrangement of coils in the gaseous fuel com-v bustion chamber.

Fig. 5 is a view-similar to Fig. 4 but showing a modified arrangement of coils.

Fig. 6 is a view, also similar to Fig. 4, but showing a further modified arrangement of coils.

Like letters of reference in the several figuresy indicate the same parts.

The general range construction may be of any preferred type and,'in the present embodiment, .the range is provided with an oven A adapted to be heated by a gaseous fuel burner or burners A In the space B above the oven are theusual open burners B B2. assembled, in a manner well understood in the art, beneath a stove top platel C of the ordinary construction having burner openings 0.

The products of combustion from the oven burner A flow into channels a, a located respectively between the oven A andthe outer and inner transverse walls A2 and Gr. rThe inner wall G separates the oven from the solid fuel iirebox, a description of which will hereinafter appear. From the channels a, the products of combustion pass through an opening D, at the back of the range into the flue box D. Tn the fiue box D is a suitable plate damper D2 mounted on an operating rod D3 which extends transversely across the range and through the front panel, whereby the damper may be shifted from the front of the range to regulate the iiow from the channels a into the iiue box D. To

insure a slight draft even when closed, the'A products of combustion and gases in theflue box may pass into the atmosphere.

Located at one side of the oven is a firebox F adapted for the consumption of solid fuel. This box may be of the usual type and has its side nearest the oven and its front and rear ends lined with fire bricks F. The fuel is supported by grate bars F2 located in the lower portion of the flrebox. The transverse wall or partition G separates the firebox from the oven A and the open burners B, and said partition is preferably provided with an angularly-disposed deflecting plate G located beneath the grate bars F2 for directing the ashes and clinkers from the grate into an ashpit H beneath the firebox.

On the side of the firebox opposite from the oven A is a combustion chamber K for the burning of gaseous fuel. This gaseous fuel combustion chamber is entirely independent of the irebox and its ashpit so that dust will not find its way into the same, and is inclosed on its outer side by the removable end wall M of the range, and on its inner side by the water front or chamber L, which is iitted in the transverse partition L. With this construction, the water front itself forms the medium separating` the gaseous fuel combustion chamber from the solid fuel iirebox, and, as a consequence, one face of the water front is exposed to the gaseous fuel combustion chamber and the .other face thereof is exposed to the solid fuel firebox. The removable endwall M is preferably the inner wall of a door M having slide-damper controlled openings ym therein at top and bottom through which air is admitted to the lower part of the gaseous fuel combustion chamber' a considerable distance below the water baclr. The door M fits an opening in the permanent end wall M2 of the range struct-ure.

The gaseous fuel combustion chamber K communicates with the flue box D at the rear of the stove through an opening N, and a plate damper O mounted in the iue box is adapted to control the dow from chamber l into the flue box. As shown, said damper 0 is pivotally mounted at its low-vr edge in the boi; so as to turn up into position for preventing access to the box through the opening mitting free passage of the products of coinbustion therethrough. fr long damper O is preferably combined with the flue box damper O. the long damper O controlling a correspondingly shaped opening Z in the wall L between the gaseous fuel combustion chamber K and the irebox F. As shown, the arrangement is such that when damper O is opened, damper O is closed and vice versa. For this purpose damper O is mounted on the rod o on which the damper O is also mounted, but damper O is disposed at a different angle from damper C). Rod 0 extends out beyond the front of the range where it is readily accessible, and by oscillating the rod toward the left damper O is shut and damper O opened. R verse movement of the rod will open damper O and concurrently close damper O. Then the long damper 0 is opened, the heated products of combustion from the gaseous fuel chamber K are permitted to pass through the upper portion of the firebox F to the flue box D and stack connection E. This arrangement is desirable inasmuch as it permits of the utilization of such heated products for the purpose of drying out or ineinerating garbage, etc., which may be placed over the lirebox in a suitable receptacle without the necessity of building a fire in the hrebox. Or the heated products may be utiliZed in this manner to augment heating of water in the water front L, as will hereinafter appear.

According to the present invention, the heat generated in the gaseous fuel combustion chamber is adapted to be transferred to water iiowing in a coil or series of coils in said chamber and also to sweep up against the water front L between the said chamber and the firebox, so that the water both in the coil and water front is simultaneously subjected to the heating action, although circulation in said water front is maintained independently of the circulation in the coil. Thus, two independent heat-circulating media are simultaneously subjected to the heating action of the gaseous fuel and it follows that a much larger quantity of water may be heated to an equal temperature without increasing the consumption of fuel, than would be the case if the coil or the water front alone were employed. In the form of the invention illustrated in Figs. l to a, inclusive, a pair of long gas burners R, R are arranged one above the other in the combustion chamber K. Each burner is double-barreled, e.,

N, or do yn into position for pery consists of two long supply pipes respec- 'tively provided with outlet holes 7', and the several yburners are preferably independently controlled, thus making it possible to regu-l late the fuel consumed in the chamber vItl within a wide yrange. 'F or example, both .burners may be lightedto first heat the water quickly and then onemay be extinguished, and the heat maintained with the a suitable boiler (not herein illustrated but of any construction preferred by those skilled in the art) is connected with a coupling P having two branches p, p. One branch of said coupling is connected with the inner end of a coil Q consistingof a pair of pipes horizontally disposed with relation to eachother and extending directly above the lower burner R. At their front ends the pipes are connected by an elbow g. At its rear end, one of the pipes of the coil Q is connected by a vertical elbow g with a pipe of a second coil Q arranged above the upper burner R. The second coil Q is in all respects similar to the coil Q and one of its pipes is connected at g2 with a branch s of a coupling S in which is secured the outlet pipe S. The branch p of coupling P is joined with a pipe T forming the inlet for the water front L and similarly branch s of coupling S is joined with a pipe T forming the outlet for said water front. Outlet pipe S leads to the upper end of a boiler in the usual manner. With the above arrangement, it will be noted that while common inlets and outlets are provided for the coils Q Q and the water front L, yet water may be circulated in the coils independently of the water front and vice versa.

If it be desired to heat the water by the consumption of gaseous fuel in the chamber K the burners R R are lighted, and the heat from said burners is transferred to the coils Q Q located directly over the burners, and is also caused to impinge against the side of the water front facing the gaseous fuel combustion chamber. The water both in the coils and the water front is thus heated by the combustion of gaseous fuel, thereby resulting in an unusually large volume of heated water with a compartively small consumption of fuel. The primary result accomplished by thus heating both bodies of water when the gas burn* ers are in use is that, by heating the water in the water front, local circulation (from the coil through the outlet branches into the water front) is prevented, thereby causing practically every heat unit to be utilized, an important object in the art to which the present invention relates. When the burners R, R are lighted the openings m in the Oor damper O.

damper O.

door M arey opened to admit a supply of oxygen for the consumption of gaseous fuel and the products of combustion may be permittedto pass out either by opening damper If damper O is opened the products of combustion from the gas burners pass directly into the flue box D. On the other hand, if damper O is opened theproducts of combustion pass over the top of the water front L into the fireboX F before they are allowed to enter the flue bor` D. Control of the passage of such products in the latter manner lmay be preferable for the reason that the products of combustion passing over the top of the water front would tend to vaugment the heating effect on the water therein. When it is desired to heatthe waterV by the consumption of solid fuel in the ireboX, the openings in the door M are closed and also the long` In practising the latter method of heating, water entersthe water front L through inlet pipe T and passes out of the water front through the outlet pipe 'I" without circulating in the coils at all, and thus no cooling effect is obtained, which would be the case if the water were allowed to circulate back into the gaseous fuel combustion chamber, before permitting it to pass to the boiler.

In the modification illustrated in Fig. 5, four singlefbarrel burners U are employed located one above the other and independently controlled, as hereinbefore set forth. |The branch o of the pipe coupling P is joined with the inlet end of a coil W consisting of a series of pipes located respectively above the superposed burners U and joined at their opposite ends by suitable elbows W. The uppermost pipe of the coil is connected with the branch s of the coupling with the outlet pipe S. The same inlet and outlet connections are employed in this modication for the water front L as in the form shown in Figs. 1 to 4, inclusive. Another modification of the invention is illustrated in Fig. 6, wherein three superposed gas burners X are employed, all of which are located beneath coil Y, the latter consisting of two pipes joined by an elbow X. One of the pipes of the coil is connected with the branch p of the inlet coupling P and the other pipe of the coil with the branch s of the outlet coupling S. In this modification the same inlet and outlet connections are also employed for the water front.

What is claimed is:

l. In a range, the combination of a fireboX for the consumption of solid fuel, a gaseous fuel chamber in proximity thereto, a water front interposed between and having its opposite sides exposed to the iireboX and gaseous fuel chamber, water coils Vfor the circulation of water located in the gaseous fuel chamber, a common inlet for sov the coil and water front, a common outlet for the coil and water front, and gaseous fuel burners in the gaseous fuel chamber positioned immediately below the water coil and immediately beside the water front so that the Haine from said burners will impinge against said water front whereby when the gaseous fuel burners are used to heat water in the coil the water in the water front will be heated to a degree to prevent local circulation between the coil and water front.

2. In a range, the combination of a rebox for the consumption of solid fuel, a gaseous fuel chamber located in proximity thereto, a water front interposed between the rebox and gaseous fuel chamber, a coil for the circulation of water in the gaseous Copies of this patent may be obtained for ve cents each, by addressing the fuel chamber including a pair of horizontally disposed pipes, a main inlet pipe having branches communicating with both the water front and the coil, a main outlet pipe having branches communicating with both the water front and coil, and gaseous fuel burners in the gaseous fuel chamber positioned immediately below the water coil and immediately beside the water front so that the flame from said burners will impinge against the water front whereby when the gaseous fuel burners are used to heat water in the coil the water in the water front will be heated to a degree suficiently high to prevent local circulation between the water coil and water front.

JAMES A. LANSING.

Commissioner of Patents,

Washington, D. C. 

